Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Does a CDN affect search rankings?
-
I feel kind of stupid asking this, but if i use one it would speed things up quite a bit. It is for a ecommerce website, any guidance on this would be awesome!
-
Google officially said the site speed is a SEO factor which, when implemented, will affect 1% of SERP results. This gives some idea of the scope of it's relevancy. (not saying 1% is either high or low, this is all very subjective)
Having said that, beyond speed improvement, CDN provides other SEO related benefits.
I've actually just published a 2-part Blog post that investigates SEO & CDN related myths and talks about CDN and SEO benefits, I hope you`ll find it useful. it should answer all questions:
Part 1: SEO & CDN Myths
Part 2: SEO & CDN benefits -
I use a CDN and have never seen any impact on my SEO. As long as your HTML is served off your domain you're fine.
If you're using AWS Cloudfront you can set up a CNAME so that your content comes from, say, images.mydomain.com instead of xyz.cdn.com. Helps obscure it from visitors and looks a bit neater.
-
Using a properly configured CDN will not have any negative effects on SEO. It can have positive effects on your rankings by offering faster page loads.
With Google's current system, you would not see a SEO benefit per se. If your current site is deemed slow by Google, you could have your current speed penalty lifted.
Moving to a CDN will surely provide a better user experience. Google is constantly adjusting it's algorithms in chase of the best user experience, so this is a chance for you to get ahead of the game. It is reasonable to think in the future Google may consider site speed as a ranking factor.
Two other suggestions regarding setting up a CDN:
-
you need to be very conscious of your cache settings. You could make a change on your site and users will not see the change if you do not ensure that change is propagated throughout your CDN
-
try to include all files which would benefit from a CDN. I have seen some sites just add their videos and image files to the CDN. Custom Javascript, CSS files and so forth can all benefit from CDN. PageSpeed and YSlow are two great tools for optimizing page loading times.
-
-
As far as I know, the urls of your additional resources such as images, css, and scripts shouldn't affect your SEO either way.
-
But, does the use of a Content Delivery Network (cdn) itself affect seo? For example my pics / code will be hosted differently. Just kind of confusing to me since I'm used to URL structure being: mydomain.com/images/pic.jpg instead of xyz.cdn.com/2523/myname/pic.jpg. Is this even something to be concerned about?
-
Site speed is only relevant when your site is extremely slow. Google doesn't penalize you unless your page load time is excessively long. You won't get a boost in rankings by speeding up your site.
With that in mind, Site load times do affect your user experience, so you may notice a lower bounce rate, more pages per visit, and possibly a higher conversion rate.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Page disappears from Google search results
Hi, I recently encountered a very strange problem.
Technical SEO | | JoelssonMedia
One of the pages I published in my website ranked very well for a couple of days on top 5, then after a couple of days, the page completely vanished, no matter how direct I search for it, does not appear on the results, I check GSC, everything seems to be normal, but when checking Google analytics, I find it strange that there is no data on the page since it disappeared and it also does not show up on the 'active pages' section no matter how many different computers i keep it open. I have checked to page 9, and used a couple of keyword tools and it appears nowhere! It didn't have any back links, but it was unique and high quality. I have checked on the page does still exist and it is still readable. Has this ´happened to anyone before? Any thoughts would be gratefully received.0 -
Search Console Errors 400 and 405
Hi, Does anyone know if search console errors showing as follows are damaging to serps: /xmlrpc.php is returning 405 error /wp-admin/admin-ajax.php is returning 400 error These errors seem to of coincided almost to the day that there was a ranking drop for the primary keyword from mid page 1 to bottom of page 2. No matter what I do I cannot seem to correct these errors. Any advice would be greatly appreciated. Thanks
Technical SEO | | DaleZon0 -
Redirect and ranking issue
Hi there - was wondering whether someone might be able to help. For a period of a day and a half, all the traffic to our website's blog articles were mistakenly being redirected to our homepage. A number of these articles ranked in the top 5 in Google worldwide for their targeted keywords, so this was a considerable amount of organic traffic that was instantly being redirected. It was a strange site glitch and our web team rectified the error, but now all these articles have disappeared from Google rankings (not visible anywhere in the first five pages). I'm presuming this must be linked to this redirect issue - we've been advised to wait and see whether Google restores these rankings, but I'm still concerned as to whether this represents a more serious problem? We have re-indexed the pages we are most concerned about, but am not sure whether there is anything else obvious we should think to do. If anyone has any thoughts, I'd be happy to hear them!
Technical SEO | | rwat0 -
Removing site subdomains from Google search
Hi everyone, I hope you are having a good week? My website has several subdomains that I had shut down some time back and pages on these subdomains are still appearing in the Google search result pages. I want all the URLs from these subdomains to stop appearing in the Google search result pages and I was hoping to see if anyone can help me with this. The subdomains are no longer under my control as I don't have web hosting for these sites (so these subdomain sites just show a default hosting server page). Because of this, I cannot verify these in search console and submit a url/site removal request to Google. In total, there are about 70 pages from these subdomains showing up in Google at the moment and I'm concerned in case these pages have any negative impacts on my SEO. Thanks for taking the time to read my post.
Technical SEO | | QuantumWeb620 -
Remove sitemap, effect ranking?
We are considering to remove our sitemap because it doesn't display the right structure. Will it affect current rankings if we remove the sitemap en continuing without a sitemap? Thanks
Technical SEO | | rijwielcashencarry0400 -
Huge ranking difference between google and bing
I am trying to rank for the keyword "trash bags" I did a lot of on-page optimization and link building. We started ranking #2 on bing and yahoo but google seems to be stubbornly fluctuating between being as high as 20 and as low as 45 and even dropped our rankings for a couple of weeks. Is there any need for concern if google is acting so different from bing/yahoo?
Technical SEO | | EcomLkwd0 -
Bing rank drop off for multiple sites
Hi Mozzers, Seeing some wacky stuff going on on some sites I manage. In more than a few, the ranking on bing has dropped basically overnight from page one spots to not being found on the first 100 positions. Anyone else seeing similar results? Some of the sites are fairly new, some have been around for ages, some are wordpress, some are not. I've been searching for some news of a big change on bing, but keep reading about bing dropping the thin sites during black friday. In one example, I had the site set up in BWT for a while, and had a look at the data. The reports show that the pages are crawled, the index summary shows pages indexed, and there seems to be no crawl errors, but rankings are absolutely gone. Also, I can't see the sites in bing if I search "site:example.com" in bing. Here's 2 examples, the first would make sense since it's pretty thin as I havent added much content yet: http://homewindowtint.org but this one doesn't make sense to me. Sure there's a few errors, but to be dropped like a rock seems weird http://www.ahmedandsukaram.com
Technical SEO | | rosstaylor0 -
Subdomain and Domain Rankings
I have read here that domain names with keywords might add a boost to your search rank For instance using a completely inane example monkey-fights.com might get a boost compared to mfl.com (monkey fighting league) when searching for "monkey fights" There seems to be a hot debate as to how much bonus the first domain might get over the second, but leaving that aside for the moment. Question 1. Would monkey-fights.mfl.com get the same kind of bonus as a root domain bonus? Question 2. If the answer to 1 above was yes would a 301 redirect from the suddomain URL to root domain URL retain that bonus I was just thinking on how hard it is to get root domains these days that are not either being squatted on etc. and if this might be a way to get the same bonus, or maybe subdomains are less bonus prone and so it would be a waste of time Thanks
Technical SEO | | bThere0